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Finding the Fourth Proportional to 590,972.80, 885,940.80 and 354,409.60

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Solution

The fourth proportional to 590,972.80, 885,940.80 and 354,409.60 is: 531,303.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,972.80 : 885,940.80 = 354,409.60 : x
  2. Step 2: Convert to fraction form
    590,972.80/885,940.80 = 354,409.60/x
  3. Step 3: Cross multiply
    590,972.80x = 885,940.80 × 354,409.60
  4. Step 4: Simplify right side
    590,972.80x = 313,985,924,551.68
  5. Step 5: Solve for x
    x = 313,985,924,551.68/590,972.80
  6. Step 6: Final answer
    x = 531,303.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.